A rock is thrown off of the edge of a 120-meter tall cliff with an initial speed of 25 m/s at an angle of 35 degrees above the horizontal. Ignore air resistance a) How much time elapses (in units of seconds) between the moment the rock is thrown and the moment the rock lands on the ground below? b) How far does the rock travel (in units of meters) in the horizontal direction before landing? c) How fast is the rock moving (in m/s) just before it hits the ground? d
A rock is thrown off of the edge of a 120-meter tall cliff with an initial speed of 25 m/s at an angle of 35 degrees above the horizontal. Ignore air resistance a) How much time elapses (in units of seconds) between the moment the rock is thrown and the moment the rock lands on the ground below? b) How far does the rock travel (in units of meters) in the horizontal direction before landing? c) How fast is the rock moving (in m/s) just before it hits the ground? d
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter6: Motion In Two Dimensions
Section: Chapter Questions
Problem 84A
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A rock is thrown off of the edge of a 120-meter tall cliff with an initial speed of 25 m/s at an angle of 35 degrees above the horizontal. Ignore air resistance a) How much time elapses (in units of seconds) between the moment the rock is thrown and the moment the rock lands on the ground below? b) How far does the rock travel (in units of meters) in the horizontal direction before landing? c) How fast is the rock moving (in m/s) just before it hits the ground? d) What direction is the rock moving in just before it hits the ground (in terms of an angle below the horizontal)?
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